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Finding the Fourth Proportional to 507,726.40, 700,690.32 and 281,367.04

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Solution

The fourth proportional to 507,726.40, 700,690.32 and 281,367.04 is: 388,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,726.40 : 700,690.32 = 281,367.04 : x
  2. Step 2: Convert to fraction form
    507,726.40/700,690.32 = 281,367.04/x
  3. Step 3: Cross multiply
    507,726.40x = 700,690.32 × 281,367.04
  4. Step 4: Simplify right side
    507,726.40x = 197,151,161,295.05
  5. Step 5: Solve for x
    x = 197,151,161,295.05/507,726.40
  6. Step 6: Final answer
    x = 388,301.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.